They are training devices, they are not for competition.

这些器具属训练设备，不会用于比赛。

youdao

Easy to use language of a minority operator training devices, compact practical.

用易语言编写的一个小数运算训练器，小巧实用。

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The two training devices can operate independently or networked to provide a total aircrew mission training system.

这两部分可单独使用，也可联网后作为一个整体系统进行机组任务训练。

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Mrs O'Connor, 52, said she supports the ban on electric shock collars which are sold as training devices.

BBC: Wales politics

In the study, Dr Lomax used an inspiratory muscle training device which works in a similar way to other resistance training devices to build muscle strength.

FORBES: Proper Breathing Can Improve Sports Performance By 15 Percent

The star's final stop was a demonstration of the techniques used to search for bombs and he used the detectors himself to search for buried training devices.

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